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13023844 = 2231105031
BaseRepresentation
bin110001101011…
…101001100100
3220111200100121
4301223221210
511313230334
61143051324
7215462251
oct61535144
926450317
1013023844
117396009
124440b44
132910022
141a30428
151223db4
hexc6ba64

13023844 has 12 divisors (see below), whose sum is σ = 23527168. Its totient is φ = 6301800.

The previous prime is 13023809. The next prime is 13023847. The reversal of 13023844 is 44832031.

13023844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×130238443 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13023847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52392 + ... + 52639.

Almost surely, 213023844 is an apocalyptic number.

It is an amenable number.

13023844 is a deficient number, since it is larger than the sum of its proper divisors (10503324).

13023844 is a wasteful number, since it uses less digits than its factorization.

13023844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105066 (or 105064 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 13023844 is about 3608.8563285340. The cubic root of 13023844 is about 235.2771379561.

Adding to 13023844 its reverse (44832031), we get a palindrome (57855875).

The spelling of 13023844 in words is "thirteen million, twenty-three thousand, eight hundred forty-four".

Divisors: 1 2 4 31 62 124 105031 210062 420124 3255961 6511922 13023844